import fetch from 'dva/fetch';
import { message } from 'antd'



function parseJSON(response) {
  return response.json();
}

function checkStatus(response) {
  if (response.status >= 200 && response.status < 300) {
    return response;
  }

  const error = new Error(response.statusText);
  error.response = response;
  throw error;
}

// fetch超时处理
const TIMEOUT = 60000;
const timeoutFetch = (url, options) => {
  let fetchPromise = fetch(url, options);
  let timeoutPromise = new Promise((resolve, reject) => {
    setTimeout(() => reject(new Error("访问链接超时")), TIMEOUT);
  });
  return Promise.race([fetchPromise, timeoutPromise]);
};

/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default function request(url, options) {
  return timeoutFetch(url, options)
    .then(parseJSON)
    .then(data => ({ data }))
    .catch(err => {
      message.error(err)
    })
}
